How do I get the XML SOAP request of an WCF Web service request

Question

I m calling this web service within code and I would like to see the XML  but I can t find a property that exposes it

User · Answer

There is an another way to see XML SOAP - custom MessageEncoder. The main difference from IClientMessageInspector is that it works on lower level, so it captures original byte content including any malformed xml.

In order to implement tracing using this approach you need to wrap a standard textMessageEncoding with custom message encoder as new binding element and apply that custom binding to endpoint in your config.

Also you can see as example how I did it in my project - wrapping textMessageEncoding, logging encoder, custom binding element and config.

User · Answer

OperationContext Current RequestContext RequestMessage    this context is accesible server side during processing of request  This doesn t works for one-way operations

User · Answer

I am using below solution for IIS hosting in ASP NET compatibility mode  Credits to Rodney Viana s MSDN blog   Add following to your web config under appSettings    lt add key  LogPath  value  C   logpath    gt   lt add key  LogRequestResponse  value  true    gt    Replace your global asax cs with below  also fix namespace name    using System  using System Collections Generic  using System Linq  using System Web  using System Web Security  using System Web SessionState   using System Text  using System IO  using System Configuration   namespace Yournamespace       public class Global   System Web HttpApplication               protected static bool LogFlag          protected static string fileNameBase          protected static string ext    log               One file name per day         protected string FileName                       get                               return String Format   0  1   2    fileNameBase  DateTime Now ToString  yyyy-MM-dd    ext                                    protected void Application Start object sender  EventArgs e                        LogFlag   bool Parse ConfigurationManager AppSettings  LogRequestResponse   ToString                 fileNameBase   ConfigurationManager AppSettings  LogPath   ToString        C5API-                         protected void Session Start object sender  EventArgs e                                protected void Application BeginRequest object sender  EventArgs e                        if  LogFlag                                                    Creates a unique id to match Rquests with Responses                 string id   String Format  Id   0  Uri   1    Guid NewGuid    Request Url                   FilterSaveLog input   new FilterSaveLog HttpContext Current  Request Filter  FileName  id                   Request Filter   input                  input SetFilter false                   FilterSaveLog output   new FilterSaveLog HttpContext Current  Response Filter  FileName  id                   output SetFilter true                   Response Filter   output                                   protected void Application AuthenticateRequest object sender  EventArgs e                                protected void Application Error object sender  EventArgs e                                protected void Session End object sender  EventArgs e                                protected void Application End object sender  EventArgs e                                  class FilterSaveLog   Stream                protected static string fileNameGlobal   null          protected string fileName   null           protected static object writeLock   null          protected Stream sinkStream          protected bool inDisk          protected bool isClosed          protected string id          protected bool isResponse          protected HttpContext context           public FilterSaveLog HttpContext Context  Stream Sink  string FileName  string Id                           One lock per file name             if  String IsNullOrWhiteSpace fileNameGlobal     fileNameGlobal ToUpper      fileNameGlobal ToUpper                                  fileNameGlobal   FileName                  writeLock   new object                              context   Context              fileName   FileName              id   Id              sinkStream   Sink              inDisk   false              isClosed   false                     public void SetFilter bool IsResponse                          isResponse   IsResponse              id    isResponse    Reponse      Request      id                                 For Request only read the incoming stream and log it as it will not be  filtered  for a WCF request                            if   IsResponse                                AppendToFile String Format  at  0  --------------------------------------------   DateTime Now                    AppendToFile id                    if  context Request InputStream Length  gt  0                                        context Request InputStream Position   0                      byte   rawBytes   new byte context Request InputStream Length                       context Request InputStream Read rawBytes  0  rawBytes Length                       context Request InputStream Position   0                       AppendToFile rawBytes                                     else                                       AppendToFile   no body                                                         public void AppendToFile string Text                        byte   strArray   Encoding UTF8 GetBytes Text               AppendToFile strArray                       public void AppendToFile byte   RawBytes                        bool myLock   System Threading Monitor TryEnter writeLock  100                 if  myLock                                try                                        using  FileStream stream   new FileStream fileName  FileMode OpenOrCreate  FileAccess ReadWrite                                                 stream Position   stream Length                          stream Write RawBytes  0  RawBytes Length                           stream WriteByte 13                           stream WriteByte 10                                                             catch  Exception ex                                        string str   string Format  Unable to create log  Type   0  Message   1  nStack  2    ex  ex Message  ex StackTrace                       System Diagnostics Debug WriteLine str                       System Diagnostics Debug Flush                                        finally                                       System Threading Monitor Exit writeLock                                                           public override bool CanRead                       get   return sinkStream CanRead                       public override bool CanSeek                       get   return sinkStream CanSeek                       public override bool CanWrite                       get   return sinkStream CanWrite                       public override long Length                       get                               return sinkStream Length                                   public override long Position                       get   return sinkStream Position                set   sinkStream Position   value                                     For WCF this code will never be reached                    public override int Read byte   buffer  int offset  int count                        int c   sinkStream Read buffer  offset  count               return c                     public override long Seek long offset  System IO SeekOrigin direction                        return sinkStream Seek offset  direction                      public override void SetLength long length                        sinkStream SetLength length                      public override void Close                          sinkStream Close                isClosed   true                     public override void Flush                          sinkStream Flush                          For streamed responses  i e  not buffered  there will be more than one Response  but the id will match the Request          public override void Write byte   buffer  int offset  int count                        sinkStream Write buffer  offset  count               AppendToFile String Format  at  0  --------------------------------------------   DateTime Now                AppendToFile id               AppendToFile buffer                        It should create log file in the folder LogPath with request and response XML

User · Answer

I just wanted to add this to the answer from Kimberly  Maybe it can save some time and avoid compilation errors for not implementing all methods that the IEndpointBehaviour interface requires   Best regards  Nicki                    This is just to illustrate how it can be implemented on an imperative declarared binding  channel and client           string url    SOME WCF URL           BasicHttpBinding wsBinding   new BasicHttpBinding                            EndpointAddress endpointAddress   new EndpointAddress url            ChannelFactory lt ISomeService gt  channelFactory   new ChannelFactory lt ISomeService gt  wsBinding  endpointAddress           channelFactory Endpoint Behaviors Add new InspectorBehavior             ISomeService client   channelFactory CreateChannel                       public class InspectorBehavior   IEndpointBehavior                       public void AddBindingParameters ServiceEndpoint endpoint  System ServiceModel Channels BindingParameterCollection bindingParameters                                   No implementation necessary                              public void ApplyClientBehavior ServiceEndpoint endpoint  ClientRuntime clientRuntime                                clientRuntime MessageInspectors Add new MyMessageInspector                                public void ApplyDispatchBehavior ServiceEndpoint endpoint  EndpointDispatcher endpointDispatcher                                   No implementation necessary                              public void Validate ServiceEndpoint endpoint                                   No implementation necessary                                       public class MyMessageInspector   IClientMessageInspector                       public object BeforeSendRequest ref Message request  IClientChannel channel                                   Do something with the SOAP request                 string request   request ToString                    return null                             public void AfterReceiveReply ref System ServiceModel Channels Message reply  object correlationState                                   Do something with the SOAP reply                 string replySoap   reply ToString

User · Answer

Simply we can trace the request message as   OperationContext context   OperationContext Current   if  context    null  amp  amp  context RequestContext    null      Message msg   context RequestContext RequestMessage   string reqXML   msg ToString

User · Answer

Option 1  Use message tracing logging    Have a look here and here     Option 2  You can always use Fiddler to see the HTTP requests and response     Option 3  Use System Net tracing

User · Answer

I think you meant that you want to see the XML at the client  not trace it at the server   In that case  your answer is in the question I linked above  and also at How to Inspect or Modify Messages on the Client   But  since the  NET 4 version of that article is missing its C   and the  NET 3 5 example has some confusion  if not a bug  in it  here it is expanded for your purpose   You can intercept the message before it goes out using an IClientMessageInspector   using System ServiceModel Dispatcher  public class MyMessageInspector   IClientMessageInspector       The methods in that interface  BeforeSendRequest and AfterReceiveReply  give you access to the request and reply   To use the inspector  you need to add it to an IEndpointBehavior   using System ServiceModel Description  public class InspectorBehavior   IEndpointBehavior       public void ApplyClientBehavior ServiceEndpoint endpoint  ClientRuntime clientRuntime                clientRuntime MessageInspectors Add new MyMessageInspector               You can leave the other methods of that interface as empty implementations  unless you want to use their functionality  too   Read the how-to for more details   After you instantiate the client  add the behavior to the endpoint   Using default names from the sample WCF project   ServiceReference1 Service1Client client   new ServiceReference1 Service1Client    client Endpoint Behaviors Add new InspectorBehavior     client GetData 123     Set a breakpoint in MyMessageInspector BeforeSendRequest    request ToString   is overloaded to show the XML   If you are going to manipulate the messages at all  you have to work on a copy of the message   See Using the Message Class for details   Thanks to Zach Bonham s answer at another question for finding these links

[c#] How do I get the XML SOAP request of an WCF Web service request?

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